US9321091B2 - Manufacturing method of side panel - Google Patents
Manufacturing method of side panel Download PDFInfo
- Publication number
- US9321091B2 US9321091B2 US13/455,305 US201213455305A US9321091B2 US 9321091 B2 US9321091 B2 US 9321091B2 US 201213455305 A US201213455305 A US 201213455305A US 9321091 B2 US9321091 B2 US 9321091B2
- Authority
- US
- United States
- Prior art keywords
- work
- piece
- press
- working
- side panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
- Y10T29/49622—Vehicular structural member making
Definitions
- the present invention relates to a method for manufacturing a side panel.
- a press working method various kinds of products having various shapes can be manufactured by a relatively simple process. Accordingly, the press working method has been widely utilized in many fields.
- the press working method basically, a single sheet of material, for example, a metal plate is used for a single kind of products.
- JP-A-59-220229 discloses a processing method in which a plurality of members to be pressed are combined and integrally welded, and then press-worked to obtain a final product.
- a tailor welded blank method in which materials having desired properties are placed on desired regions has been adapted.
- materials which have a desired material quality and sheet thickness different from each other can be combined as a blank material.
- the combined blank material is integrally formed by a welding and press-worked by a press machine to obtain a final product.
- a desired press working can be performed by single press working.
- a side panel 300 illustrated in FIG. 4 includes an upper member 100 and a lower member 200 which have strengths different from each other.
- the upper member 100 includes a front pillar portion 101 , a loop pillar portion 102 and a rear pillar portion 103 .
- the lower member 200 is constituted by a side sill which extends from a lower side of the side panel 300 to a rear fender.
- the side sill includes a side sill front portion 201 connected to the lower side of the side panel 300 , a side sill main portion 202 and a side sill rear portion 203 connected to the front pillar portion 103 and a wheel portion of the rear fender.
- the upper member 100 of the side panel 300 is considered as a part having a focus on design. For this reason, the upper member is made of a relatively soft material to obtain good formability. Meanwhile, the lower member 200 of the side panel 300 is made of a material which has a higher strength than the upper member 100 in order to obtain to a safety during driving or collision.
- the upper member 100 and the lower member 200 of the side panel 300 are joined to each other by welding a joined part A between the rear pillar portion 101 and the side sill front portion 201 and a joined part B between the front pillar portion 103 and the side sill rear portion 203 .
- a material of the lower member 200 of the side panel 300 has a higher strength than a material of the upper member 100 of the side panel 300 . Accordingly, when the material of the upper member 100 and the material of the lower member 200 of the side panel 300 are press-worked, it is necessary to apply higher press load on the material of the lower member 200 having a high strength than the material of the upper member 100 .
- the material of the side panel 300 is press-worked while being placed on a press machine in a state where a center portion of the press area is positioned near a center portion of the material of the side panel 300 , the material of the lower member 200 required for a high press load is arranged at a position offset downward from the press machine. For this reason, when the material of the upper member 100 and the material of the lower member 200 of the side panel 300 are simultaneously press-worked, a bias is caused in the press load and therefore a processing surface of a mold forming a press surface is inclined. Consequently, there is a problem which a suitable press working cannot be achieved for the side panel 300 .
- the metal plate 100 A of the upper member of the side panel 300 and the metal plate 200 A of the lower member of the side panel 300 are subjected to a drawing work by a separate press machine and then processed metal plates 100 B, 200 B are shaped, as illustrated in FIG. 5 . Subsequently, the processed metal plates 100 B, 200 B are further press-worked by a separate press machine to allow unnecessary portions thereof to be removed.
- the upper members 100 - 1 to 100 - n and the lower members 200 - 1 to 200 - n are formed.
- the upper member 100 and the lower member 200 of the side panel 300 thus formed are joined to each other at the joined parts A, B using a spot welding and therefore the side panel is completed as a product.
- One or more embodiments of the invention provide a side panel manufacturing method which is capable of simultaneously press-working a plurality of members with a low cost even if it is required to press-work the plurality of members with different press loads.
- FIGS. 1( a ) and 1( b ) are views illustrating a manufacturing method of a side panel according to an embodiment.
- FIG. 2 is a view illustrating a schematic configuration of a manufacturing system for performing the manufacturing method of the embodiment.
- FIGS. 3( a ) to 3( d ) are views sequentially illustrating the manufacturing method of the embodiment.
- FIG. 4 is a view illustrating a configuration of a side panel.
- FIG. 5 shows views sequentially illustrating a manufacturing method of a side panel according to a related art.
- FIG. 1 illustrates a side panel that is manufactured by applying the manufacturing method.
- the side panel 1 includes an upper member 10 and a lower member 20 .
- the upper member 10 includes a front pillar portion 11 , a loop pillar portion 12 and a rear fender portion 13 .
- the lower member 20 is constituted by a side sill which extends from a lower side of the side panel 1 to the rear fender portion 13 .
- the side sill includes a side sill front portion 21 connected to the front pillar portion 11 , a side sill main portion 22 and a side sill rear portion 23 connected to the rear fender portion 13 .
- the side sill front portion 21 and the side sill main portion 22 are integrally connected to each other by an L-shaped portion.
- the upper member 10 and the lower member 20 are joined to each other by welding a joined part A between the front pillar portion 11 and the side sill front portion 21 and a joined part B between the rear fender portion 13 and the side sill rear portion 23 . Further, the upper member 10 and the lower member 20 are connected to each other at the joined parts A, B and form an opening C therebetween for allowing a door to be installed.
- the upper member 10 of the side panel 1 is considered as a part having a focus on design. For this reason, the upper member is made of a relatively soft material to obtain good formability. Meanwhile, the lower member 20 of the side panel 1 is made of a material which has a higher strength than the upper member 10 in order to obtain to a safety during driving or collision. In particular, it is necessary to maintain the strength of the L-shaped portion at a special high degree.
- the upper member 10 and the lower member 20 of the side panel 1 are designed to form the opening C therebetween for allowing a door to be installed.
- the upper member 10 is formed with a recessed portion E and thus the opening C of the side panel 1 is formed by the upper member 10 and the lower member 20 .
- a press working is performed in a state where the lower member 20 including the L-shaped portion (hereinafter, referred to as a corner portion) of the side sill is arranged within the recessed portion E the upper member 20 of the side panel 1 .
- the largest press load is applied near a load center of a press area in a press machine. From this point, according to the embodiment, it is possible to avoid the inclination of the press machine due to a bias of the press load by arranging the corner portion D of the lower member 20 having a high strength at a position of the largest press load near the load center of the press area in the press machine.
- FIG. 2 is a view illustrating a schematic configuration of a manufacturing system 50 for performing the manufacturing method of the present embodiment.
- the manufacturing system 50 includes a first process for performing a drawing work on each metal plate constituting the members of the side panel 1 , a second process for removing unnecessary portions from the metal plate processed at the first process, a third process for rotationally moving the metal plate with unnecessary portions removed, thereby positioning the corner portion thereof at a predetermined position and a fourth process for caulking the metal plate arranged at the predetermined position, thereby temporarily fixing the metal plate.
- the manufacturing system 50 has a third process unit 30 for performing the third process.
- the third process unit 30 includes a fixing device 31 for fixing various metal plates constituting the side panel 1 , a tilting mechanism 32 for tilting the metal plates fixed by the fixing device 31 , a rotational mechanism 33 for rotating the metal plate, a slide mechanism 34 for slidably moving the metal plate, and a control unit 35 for individually controlling the fixing device 31 , the tilting mechanism 32 , the rotational mechanism 33 and the slide mechanism 34 .
- the manufacturing system 50 further includes a first process unit 25 for performing the first process, a second process unit 26 for performing the second process and a fourth process unit 27 for performing the fourth process.
- the manufacturing system 50 includes a monitor unit 51 for monitoring the state of the metal plate at each of the first process, the second process, the third process and the fourth process.
- the monitor unit 51 is constituted by a camera or sensor, etc., and can obtain information required for performing the above process, such as a position or a state of the metal plate.
- the control unit 35 is configured to control each of the first process unit 25 , the second process unit 26 and the fourth process unit 27 as well as the third process unit 30 , based on the information relating to the state of the metal plate obtained from the monitor unit 51 .
- a metal plate 10 A having a normal strength is used, and as a material of the lower member in the side panel, a metal plate 20 A having a higher strength than the metal plate 10 A.
- the metal plate 10 A and the metal plate 20 A are arranged not to overlap each other. That is, as illustrated in dotted line, the metal plate 20 A is arranged in the recessed portion E of the metal plate 10 A not to overlap the metal plate 10 A. Subsequently, in this arrangement, a drawing work of the metal plate 10 A and the metal plate 20 A is performed by the first process unit 25 . This process is performed by a press machine (not illustrated).
- the metal plate 10 A is subjected to the drawing work to form a curved surface illustrated in dashed-dotted line. That is, the metal plate 10 A is subjected to the drawing work to form the recessed portion E. Similarly, the metal plate 20 A is also subjected to the drawing work to form a curved surface illustrated in solid line while being arranged within the recessed portion E of the metal plate 10 A.
- the lower member 20 is tilted, rotated and slidably moved relative to the first member 10 with unnecessary portions removed.
- the lower member 20 is arranged at a predetermined position relative to the upper member 10 so that the lower member can be joined to the upper member at the joined portions A, B.
- the press machine is not essential.
- the upper member 10 and the lower member 20 are fixed by the fixing device 31 .
- the lower member 20 is tilted relative to the upper member 10 by the tilting mechanism 32 so that the lower member 20 is arranged not to interfere with the upper member 10 .
- the lower member 20 is rotated relative to the upper member 10 by the rotational mechanism 33 to direct the corner portion D of the lower member 20 to a front side of the main body.
- the lower member 20 is moved by the slide mechanism 34 so that the lower member 20 is arranged at a predetermined position (illustrated in FIG. 3 ( d ) ) relative to the upper member 10 .
- the upper member 10 and the lower member 20 are caulked or pierced so that the upper member and the lower member are temporarily fixed at the joined portions A, B.
- This process may be performed by a press machine (not illustrated).
- the first member and the second member are simultaneously press-worked in a state where the high strength portion of the second member (lower member) is positioned near the center of the press load. Accordingly, it is possible to press-work the second member with a high strength at a position of the largest press load near the load center of the press area in the press machine. Further, since the press working is performed in a state where the second member is arranged in the recessed portion of the first member, a wide press area is not required. Accordingly, the first member and the second member having different strengths can be simultaneously press-worked without significantly increasing the load pressure of the press machine or requiring a large press machine. As a result, it is possible to provide a side panel manufacturing method capable of press working each of the members with a low cost.
- the third process unit 30 is configured to tilt, rotate and slide the metal plate with unnecessary portions removed at the second process so that the corner portion is arranged in a predetermined position.
- the present invention is not limited to this case and the third process unit 30 may be utilized to suitably arrange two metal plates in such a way that the corner portion of one metal plate (as the second member) is introduced at a predetermined position within the recessed portion of the other metal plate (as the first member) before the first process is performed.
- the third process unit 30 include the press machine.
- the third process unit may be constituted with a robot.
- the present invention when the press working is performed, the upper member 10 and the lower member 20 are simultaneously press-worked in a state where the corner portion D of the lower member 20 is positioned near the center of the press load in the concave portion E of the upper member 10 .
- the present invention is not limited to this case. Specifically, as long as a high strength region of the lower member 20 is positioned near the center of the press load or the whole or most of the lower member 20 is positioned at the interior of the concave portion E of the upper member 10 , a region which is positioned at the center of the concave portion E of the upper member 10 or near the center of the press load is not limited to the corner portion D. This region can be changed depending on a mounting situation.
- the load center is positioned near the center of the press area in the present embodiment, the present invention is not limited to this case.
- the press working may be performed in a fashion that a high strength member is positioned near the load center while not interfering a low strength member.
- the present invention is not limited to this case.
- the present invention is also applicable to a case of performing a press working two or more members having different strengths.
- the material of the first member and the material of the second member are simultaneously press-worked in a state where the corner portion of the material of the second member with a high strength is arranged in the recessed portion of the material of the first member (metal plate 10 A), that is, near the center of the press load, it is possible to avoid the inclination of the press machine. Further, since the press working is performed in a state where the corner portion of the second member is introduced in the recessed portion of the first member, a wide press area is not required. Accordingly, the first member and the second member having different strengths can be simultaneously press-worked without significantly increasing the load pressure of the press machine or requiring a large press machine.
- the first member ( 10 ) may include a front pillar portion ( 11 ), a loop pillar portion ( 12 ), and a rear fender portion ( 13 ), and the second member ( 20 ) may include a side sill front portion ( 21 ), side sill main portion ( 22 ), and a side sill rear portion ( 23 ).
- a strength of the second work-piece ( 20 A, 20 B) may be higher than a strength of the first work-piece ( 10 A, 10 B).
- the press-working step may include a step of disposing the portion of the second work-piece ( 20 A, 20 B) to be the corner portion (D) in the portion of the first work-piece ( 10 A, 10 B) to be the recessed portion (E) so that the first work-piece ( 10 A, 10 B) and the second work-piece ( 20 A, 20 B) do not overlap to each other.
- the press-working step may further include a step of performing a draw-working simultaneously on the first work-piece ( 10 A) and the second work-piece ( 20 A) which are disposed not to overlap to each other; and a step of performing a shearing-working simultaneously on the first work-piece ( 10 B) and the second work-piece ( 20 B) on which the draw-working has been subjected.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011100685A JP5631258B2 (ja) | 2011-04-28 | 2011-04-28 | 自動車のサイドパネルの製造方法 |
JP2011-100685 | 2011-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20120272707A1 US20120272707A1 (en) | 2012-11-01 |
US9321091B2 true US9321091B2 (en) | 2016-04-26 |
Family
ID=47050818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/455,305 Expired - Fee Related US9321091B2 (en) | 2011-04-28 | 2012-04-25 | Manufacturing method of side panel |
Country Status (3)
Country | Link |
---|---|
US (1) | US9321091B2 (zh) |
JP (1) | JP5631258B2 (zh) |
CN (1) | CN102756034B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170113746A1 (en) * | 2015-10-21 | 2017-04-27 | Honda Motor Co., Ltd. | Split outer side panel jig and system |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5664704B2 (ja) * | 2013-06-11 | 2015-02-04 | Jfeスチール株式会社 | プレス成形方法 |
CN105745233B (zh) | 2013-10-31 | 2018-06-12 | 日本瑞翁株式会社 | 聚合性化合物、聚合性组合物、高分子、及光学各向异性体 |
KR101914846B1 (ko) * | 2014-02-04 | 2018-11-02 | 신닛테츠스미킨 카부시키카이샤 | 자동차용 골격 부품, 및 그것을 구비한 프런트 필러 로어 |
CN105215625A (zh) * | 2014-06-06 | 2016-01-06 | 哈尔滨飞机工业集团有限责任公司 | 一种起落架接头深腔斜面加工方法 |
USD903563S1 (en) * | 2018-02-13 | 2020-12-01 | Ningbo Geely Automobile Research & Development Co. | Tailgate for vehicle |
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US3241350A (en) * | 1955-09-05 | 1966-03-22 | Promecan Sisson Lehmann | Bending press |
JPS59220229A (ja) | 1983-05-30 | 1984-12-11 | Toyota Motor Corp | プレス製品の製造方法 |
US5532450A (en) * | 1992-04-09 | 1996-07-02 | Toyota Jidosha Kabushiki Kaisha | Apparatus and method capable of manufacturing two or more different types of welded panels |
US6282790B1 (en) * | 1997-10-16 | 2001-09-04 | Cosma International Inc. | Hydroformed space frame and method of manufacturing the same |
US6547895B2 (en) * | 2001-01-25 | 2003-04-15 | General Motors Corporation | Superplastic multi-layer forming |
US20050115300A1 (en) * | 2003-11-27 | 2005-06-02 | Nissan Motor Co., Ltd. | Press-forming method, press-forming machine and press-formed product |
US7143514B2 (en) * | 2000-07-10 | 2006-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Method for manufacturing a vehicular body panel |
US20080258450A1 (en) * | 2004-10-14 | 2008-10-23 | Nissan Motor Ltd. | Suspension Member |
US20090178458A1 (en) * | 2008-01-10 | 2009-07-16 | Hirotec America, Inc. | Two die process |
US8257516B2 (en) * | 2008-10-16 | 2012-09-04 | Hyundai Hysco | Method for manufacturing super strong steel body for manufacture of products with complicated shape |
Family Cites Families (5)
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JP2741828B2 (ja) * | 1993-01-22 | 1998-04-22 | 本田技研工業株式会社 | 集合ブランク部材 |
JP3525417B2 (ja) * | 2001-03-14 | 2004-05-10 | 本田技研工業株式会社 | 車体におけるサイドパネルの製造方法 |
DE10151684B4 (de) * | 2001-10-19 | 2005-10-06 | Daimlerchrysler Ag | Seitenwandbaugruppe für eine Kraftfahrzeugkarosserie |
JP2005008021A (ja) * | 2003-06-18 | 2005-01-13 | Mazda Motor Corp | 車両の側部車体構造及びその組立方法 |
JP5363065B2 (ja) * | 2008-11-05 | 2013-12-11 | 株式会社エフテック | 車両用l型サスペンションアーム |
-
2011
- 2011-04-28 JP JP2011100685A patent/JP5631258B2/ja not_active Expired - Fee Related
-
2012
- 2012-04-25 US US13/455,305 patent/US9321091B2/en not_active Expired - Fee Related
- 2012-04-28 CN CN201210132371.6A patent/CN102756034B/zh not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3241350A (en) * | 1955-09-05 | 1966-03-22 | Promecan Sisson Lehmann | Bending press |
JPS59220229A (ja) | 1983-05-30 | 1984-12-11 | Toyota Motor Corp | プレス製品の製造方法 |
US5532450A (en) * | 1992-04-09 | 1996-07-02 | Toyota Jidosha Kabushiki Kaisha | Apparatus and method capable of manufacturing two or more different types of welded panels |
US6282790B1 (en) * | 1997-10-16 | 2001-09-04 | Cosma International Inc. | Hydroformed space frame and method of manufacturing the same |
US7143514B2 (en) * | 2000-07-10 | 2006-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Method for manufacturing a vehicular body panel |
US6547895B2 (en) * | 2001-01-25 | 2003-04-15 | General Motors Corporation | Superplastic multi-layer forming |
US20050115300A1 (en) * | 2003-11-27 | 2005-06-02 | Nissan Motor Co., Ltd. | Press-forming method, press-forming machine and press-formed product |
US7568272B2 (en) * | 2003-11-27 | 2009-08-04 | Nissan Motor Co., Ltd. | Press-forming method, press-forming machine and press-formed product |
US20080258450A1 (en) * | 2004-10-14 | 2008-10-23 | Nissan Motor Ltd. | Suspension Member |
US7857349B2 (en) * | 2004-10-14 | 2010-12-28 | Nissan Motor Co., Ltd. | Suspension member |
US20090178458A1 (en) * | 2008-01-10 | 2009-07-16 | Hirotec America, Inc. | Two die process |
US8257516B2 (en) * | 2008-10-16 | 2012-09-04 | Hyundai Hysco | Method for manufacturing super strong steel body for manufacture of products with complicated shape |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170113746A1 (en) * | 2015-10-21 | 2017-04-27 | Honda Motor Co., Ltd. | Split outer side panel jig and system |
US10427740B2 (en) * | 2015-10-21 | 2019-10-01 | Honda Motor Co., Ltd. | Split outer side panel jig and system |
Also Published As
Publication number | Publication date |
---|---|
US20120272707A1 (en) | 2012-11-01 |
CN102756034A (zh) | 2012-10-31 |
JP2012232315A (ja) | 2012-11-29 |
JP5631258B2 (ja) | 2014-11-26 |
CN102756034B (zh) | 2014-11-26 |
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